A  center tap (7 v)           1 center tap (7v)
  B  center tap (7 v)           2 center tap (7v)      
  C  7 volt                     3 7 volt               
  D  7 volt                     4 7 volt               
  E                             5 coin mulp pc         
  F  speaker                    6 reset credit mult PC 
  H  speaker                    7
  J  coin (cred mult)           8
  K  (tilt)                     9 credit switch        
  L  one player                10 two player           
  M  move left                 11 move right           
  N  move up                   12
  P                            13
  R                            14 move down            
  S  RGB Ground                15 common for controls  
  T  RGB Red                   16 RGB Green            
  U  RGB Blue                  17 RGB Neg Sync         
  V                            18 +5volt (cred mult pc)
  W  12 Volt                   19 12 volt              
  X  12 Volt                   20 12 volt              
  Y  center tap(12v)           21 center tap (12v)     
  Z  center tap(12v)           22 center tap (12v)